Middleeast valve is one of the best Trunnion ball valve supplier in Dubai. We deliver to cities such as Hatta, Zayed, and AI Aweer.

A trunnion ball valve consists of a hollow, perforated ball (usually made of metal) with a hole (bore) through its center. The valve features a spherical closure element, commonly referred to as the ball, which is supported by trunnions – small shafts or projections that provide stability and precise control. The trunnion-mounted ball distinguishes these valves from their floating ball counterparts, offering enhanced durability and optimal sealing performance.

Understanding Ball Valve Functionality:

A ball valve is a quarter-turn valve that uses a hollow, perforated, and pivoting ball to control the flow of liquids or gases. The ball inside the valve has a hole through which the fluid passes when the valve is open. When the valve is closed, the ball rotates to block the passage, preventing the flow of the fluid. This simple yet effective design allows for quick and precise control of the flow, making ball valves suitable for various industries.

Compact and space-efficient, ball valves are suitable for applications with limited space or smaller pipe diameters.


Trunnion ball valves excel in providing precise control and shut-off capabilities. The rotational movement of the ball, facilitated by the trunnions, allows for smooth regulation of fluid flow. The quarter-turn operation enhances the valve’s responsiveness, making it ideal for applications where quick and accurate control is crucial.

Ball Valve: Characterized by a spherical closure element (the “ball”) with a central hole, ball valves control flow by rotating the ball 90 degrees. In the open position, the hole aligns with the pipeline for unobstructed flow, while rotation to 90 degrees obstructs flow by aligning the solid part of the ball with the pipeline.

Key Components:

  • Ball: The central component, typically made of durable materials such as stainless steel or other alloys, ensures effective sealing and control of fluid flow.
  • Trunnions: Positioned at the top and bottom of the ball, trunnions provide pivotal support, allowing for controlled rotation and reliable performance over extended periods.
  • Seats and Seals: The valve’s sealing mechanism is critical for preventing leakage. High-quality seats and seals, often made of resilient materials like PTFE or metal, ensure a tight seal even under challenging conditions.
  • Actuators: Trunnion ball valves can be operated manually or through automated systems using actuators. Actuators facilitate remote control, making these valves suitable for a wide range of industrial applications.

Trunnion ball valve supplier in Dubai place utmost importance on ensuring the stability and accurate positioning of the ball, particularly under conditions involving high pressures and rapid flow rates, thereby prioritizing operational reliability and precision alignment.


Body Material: Cast steel (WCB, WCC, WC6, LCC, LCB), Stainless steel (SS316, SS304, F51, F55, CF8, CF8M), Titanium.

Size: 2” to 48”

Class: 150 to 2500; PN16 to PN450

Ends: Buttweld Trunnion Ball Valve, Socket weld Trunnion Ball Valve, Flanged Trunnion Ball Valve.

Operations: Gear Operated, Electric Actuated, Pneumatic actuated, Lever

Industries of trunnion valve:

  1. Oil and gas
  2. Chemical
  3. Power generation
  4. Water treatment
  5. Mining

Visit us: https://www.middleeastvalve.com/product-category/trunnion-ball-valve/ 

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